i'd go with...
chopin- ballade no.4
bartok- out of doors suite
rachmanininoff- etudes tableux
you might want to add a stronger classical piece...
more contrast too- it's very romantic/ impressionistic heavy
The Op. 14 Suite is not the same as the Out of Doors suite.
and the pieces that are still in contention are the ones I listed in my last post-
Scarlatti- Two Sonatas, K. 141 and 491
Schubert- Piano Sonata in B-flat, D.960 "Molto Moderato"
Liszt- Mephisto Waltz No. 1
Chopin- Ballade No. 4 in F Minor, Op. 52
Ravel- Le Tombeau de Couperin
Rachmaninoff- Etudes-Tableaux in F-sharp Minor, Op. 39 No. 3
Rachmaninoff- Concerto No. 3 in D Minor, Op. 30 "Allegro ma non tanto"